Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free:

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Google Analytics

Targeted advertising cookies


The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal logo partenaire Logo Biogeco

Unité Mixte de Recherche Inra-Univ. Bordeaux 1 "Biodiversité Gènes et Communautés" - Biogeco

Unité mixte de recherche (Inra, Univ. Bordeaux 1)Biodiversité, gènes et communautés (Biogeco) INRA_rvb150Bordeaux1

INRA Bordeaux-Aquitaine

Site de Recherches Forêt-Bois

69 route d'Arcachon

33612 CESTAS Cedex - FRANCE

Ducousso Alexis (engineer)

Ducousso Alexis
+33 535 38 53 61, alexis.ducousso(at)

Team of population genetics


UMR Biodiversity from Genes et Communities
 69 route d'Arcachon
 33612 CESTAS Cedex – France

Tel : +33 535 38 53 61

Courriel : alexis.ducousso(at)


1985 :Ph.D. Genetic and Biology of Plant Populations, University of Lille (France)

1981 :Master of Plant Biology and Physiology, University of Lille (France)


My mains research relates to (i) genetic conservation and management of European white oaks and beech and genetic improvement of northern red oak and (ii) biological invasion of northern red oak.

I manage large experimental networks:

- Provenances tests of Quercus petraea (140 ha, 250.000 individuals, 4 tests)

- Progenies tests of Quercus robur and Q. petraea (17 ha, 20.000 individuals, 1 test)

- Progenies-Provenances tests ofQuercus rubra(71 ha, 140.000 individuals, 21 tests)

- Provenances tests ofFagus sylvatica(états des lieux en cours, 16 tests)

- Intensive Survey Plot of oak (8 ha, 700 individuals, 1 site)

- Intensive Survey Plot of beech (several hundred ha, 1 site)

On these tests, we have developed many co-operation on ecophysiology, tree architecture, pathology, biodiversity (galls)…

On Going Research Projects

  • ONF : agreement on genetic diversity of European white oaks, 2006-2011


University Orléans : master ETAH

National Forest Sevice (ONF): vocational training

Selected recent publications

Scientific papers

2004 - Petit RJ, Bodenes C, Ducousso A, Roussel G et Kremer A, Hybridization as a mechanism of invasion in oaks, New Phytologist, 161 (1), 151-164.

2005 - Magni CR, Ducousso A., Caron H., Petit RJ et  Kremer A., Chloroplast DNA variation of Quercus rubra L. in North America and comparison with other Fagaceae, Mol. Ecol., 14 (2) , 513–524.

2006 - Prida A, Boulet JC, Ducousso A, Petit RJ, Nepveu G, Puech JL, Effect of species and ecological conditions on ellagitannin content in oak wood from an even-aged and mixed stand of Quercus robur L. and Quercus petraea Liebl.,  Annals of Forest Science, 63(4), 415-424.  

2007- Prida A, Ducousso A, Petit RJ, Nepveu G et Puech JL. Variation in wood volatile compounds in a mixed oak stand: strong species and spatial differentiation in whisky-lactone content. Annals of Forest Science, 64(3), 313-320

2010 - Colin F, Ducousso A et Fontaine F,. Epicormics in 13-year-oldQuercus petraea: small effect of provenance and large influence of branches and growth unit limits. Annals of Forest Science , 67( 3), 312-323.

2011 - Wortemann R., Herbette S., Sévérien Barigah T.,  Fumanal B., Alia R., Ducousso A., Gomory D., Roeckel-Drevet P. et Cochar H., Genotypic variability and phenotypic plasticity of cavitation resistance in Fagus sylvatica L. across Europe. Tree Physiology, 31, 1175–1182

2013 - Koskela J., Lefevre F., Schueler S., Kraigher H., Olrik D.C., Hubert J., Longauer R., Bozzano M., Yrjana L., Alizoti P., Rotach P., Vietto L., Bordacs S., Myking T., Eysteinsson T., Souvannavong O., Fady B., De Cuyper B., Heinze B., von Wuhlisch G., Ducousso A., Ditlevsen B. Translating conservation genetics into management: Pan-European minimum requirements for dynamic conservation units of forest tree genetic diversity. Biological Conservation, 157, 39–49

2013 - Petit R.J., Carlson J., Curtu A.L., Loustau M.L., Plomion C., Gonzalez-Rodrıguez A., Sork V. et Ducousso A.Fagaceaetrees as models to integrate ecology, evolution and genomics. New Phytologist, 197, 369–371.

2013 - De Lafontaine G., Ducousso A., Lefevre S. et Petit R., 2013. Stronger spatial genetic structure in recolonized areas than in refugia in European beech. Mol. Ecol., 22 (17)   4397-4412

2014 - de Lafontaine G., Amasifuen Guerra C.A., Ducousso A. et Petit R.., Cryptic no more: soil macrofossils uncover Pleistocene forest microrefugia within a periglacial desert. New Phytologist, sous presse.

2014- Lagache L., Klein E., Ducousso A. et Petit R., Distinct male reproductive strategies in two closely related oak species. Mol. Ecol., sous presse.

Scientific popularization:

2004- Ducousso A., Louvet JM, Faucher M., Legroux P., Jarret P. et Kremer A.  Un exemple de révision des régions de provenances et des peuplements classés :  le cas des chênes pédonculé et sessile., Rendez Vous Techniques de l’ONF, H.S. 1, 34-42.

2004- DUCOUSSO, A., Il faut sauver le hêtre du Ciron, Sud Ouest Nature, 126, 7.

2005 - DUCOUSSO A. et BORDACS S. ; Technical guidelines for genetic conservation and use for pedunculate and sessile oaks (Quercus robur and Q. petraea). International Plant Genetic Resources Insitute, Rome, Italy, 6 p.

2005- Ducousso, A. , Catry, B. et Crépin, F. La gestion sylvo-cynégétique : I. Le comportement du chevreuil et ses conséquences sur les dégâts. Forêt Entreprise, (161) : 44-48.

2005- Ducousso, A., Catry, B. et Crépin, F. Aménagement forestier favorable au chevreuil. Forêt Entreprise, 163, 55-59.

2005 - Ducousso A. et Déqué M. ;  Les changements climatiques : Introduction. Forêt-Entreprise, 162, 15-19.

2006- Ducousso, A., Dynamique de la végétation forestière : un aperçu de la complexité des interactions dans un écosystème, Sud Ouest Nature, (132) : 16-20.

2006 - Crépin F., Ducousso A. et Catry B., Gestion cynégétique du chevreuil, Forêt Entreprise, 167, 58-60.

2006 - Picot, D., Bideau, E. ; Hamard, J.P. ; Calatayud, F. ; Ducousso, A. ; Ballon, P., Impact du frottis de chevreuil sur le Chêne sessile : premiers enseignements d’une expérimentation. Rev. For. Fran.,  58 (6), 521-530

2009 - Martin S., Ducousso A. et  Valadon A., Conserver les ressources génétiques du chêne sessile en France : pourquoi, comment ? RDV techniques ONF, 23-24, 64-71.

2009 - Verger S., Ducousso A., Conserver les ressources génétiques du chêne sessile en France: pourquoi, comment? RenDez-Vous Techniques, 23/24,   pp 55-63.

2010 - Ducousso A. et Verger S., Une grande lacune des programmes de protection de la biodiversité : les ressources génétiques, un exemple : le chêne sessile. Courrier scientifique du Parc naturel régional du Luberon,  9,  28-37.

2010 - Ducousso A., Bordacs S., Kraigher H., Bogovic M. et Westergren M., Technical guidelines for the conservation and utilization of genetic resources pedunculate and sessile oaks (Quercus robur/Quercus petraea). Gozdarski Vestnik, 68(3), pp 159-174.

2010 - Timbal J. et Ducousso A., Le hêtre (Fagus sylvatica L.) dans les Landes de Gascogne et à leur périphérie, Bull. Soc. Linn., 145, 38(2), pp 127-137.

2010 - Ducousso A., Les ressources génétiques des arbres face aux changements climatiques : les différentes réponses. RDV techniques, H.S. 5,. 66-72.

2010 - Ducousso A., European beech (Fagus sylvatica L.) in France. Communicationes Instituli Forestalis  Bohemica, 25, 91-97.

2011 - Ducousso A. and Bordacs S., Fiche technique d’EUFORGEN pour la conserva­tion génétique et l'utilisation des chênes sessile et pédonculé (Quercus robur / Quercus petraea). Ducousso, A. et E. Collin, tra­ducteurs. Bioversity International, Rome, Italie, et Min. Agriculture, Paris, France. 6 pages.

2012 - Ducousso A. Le climat change les espèces migrent. Forêt de France, 550,32-34

2012 - Ducousso A., Barbedienne Ph, Corcket E., Guinberteau J., Delafontaine G., Lefevre S. et Timbal J., Les hêtres dans le Sud-Ouest de la France. Sud Ouest Nature, 154, 11-13.

2013 - de Lafontaine G.,  Amasifuen Guerra C.A. et Ducousso A., L’anthracothèque de Bordeaux: une collection de référence pour l’identification taxomomique des charbons de bois provenant des Landes de Gascogne et leur périphérie. Bull. Soc. Linn. Bordeaux, 148(41(2)), 241-248.